N is for nymph. Cicadas spend most of their life in their nymph form, burrowing underground, drinking the fluids of plant roots, growing larger… waiting for the day they emerge and transform into adult cicadas. Here is a photo of a tiny 1st instar nymph, and this is a video of full-grown nymphs that have emerged from the ground:
The Northern Dusk-Singing cicada, a.k.a. Tibicen auletes, is the largest North American Tibicen cicada. See some images of the Northern Dusk-Singing cicadas including the M. auletes in comparison to other Tibicens.